| 摘要 |
Disclosed is a display panel including a lower substrate, upper substrate, and a patterned spacer that causes the lower substrate and upper substrate to be spaced apart from each other by a predetermined distance, wherein the patterned spacer is obtained from a photosensitive resin composition comprising: (a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photo polymerizable reactive resin binder; and (c) a polymerizable compound:;
(wherein each of R1-R5 has the same meaning as defined herein). A photosensitive resin composition for use in a patterned spacer is also disclosed, the composition comprising: (a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photopolymerizable reactive resin binder; (c) a polymerizable compound; and (d) a solvent. The photosensitive resin composition shows high sensitivity and excellent properties related with development, and provides a patterned spacer having excellent strength, sensitivity, residue characteristics, film uniformity, residual film ratio, etc. |
| 主权项 |
1. A display panel including a lower substrate, upper substrate, and a patterned spacer that causes the lower substrate and upper substrate to be spaced apart from each other by a predetermined distance, wherein the patterned spacer is obtained from a photosensitive resin composition comprising:
(a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photopolymerizable reactive resin binder having an acid value of about 30-200 KOH mg/g, which is obtained by polymerization of: an alkali-soluble linear copolymer obtained by copolymerization of an acid functional group-containing monomer with a monomer copolymerizable therewith; and an epoxy group-containing ethylenically unsaturated compound; and (c) a polymerizable compound: wherein the epoxy group-containing ethylenically unsaturated compound is glycidyl 5-norbornene-2-carboxylate (endo/exo mixture), and the acid functional group-containing monomer is selected from the group consisting of (meth)acrylic acid, crotonic acid, itaconic acid, maleic acid, fumaric acid, monomethylmaleic acid, isoprenesulfonic acid, styrenesulfonic acid and 5-norbornene-2-carboxylic acid, wherein R1 is selected from the group consisting of CnH2nCONH2 (wherein n is an integer of 1˜12), CnH2nCOOCmH2m+1 (wherein n is an integer of 1˜12 and m is an integer of 0˜12), (CH2)nCOOCmH2mOC1H2m+1 (wherein n is an integer of 1˜12, m is an integer of 1˜12 and 1 is an integer of 1˜12), (CH2)nCOO-cyclo-CmH2m−1 (wherein n is an integer of 1˜12, m is an integer of 3˜12), CnH2nCOORf (wherein n is an integer of 1˜12 and Rf is an alkyl group whose hydrogen atoms are partially or totally substituted with fluorine atoms), and CnH2nCOOR6 (wherein n is an integer of 1˜12 and R6 is an aryl group or a C1-C6 alkyl group having an aryl group); and each of R2, R3, R4 and R5 is independently selected from the group consisting of a hydrogen atom, halogen atom, C1-C6 alkyl group and a C1-C6 alkoxy group. |
